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#ifndef CONVOLUTIONTASK_H
#define CONVOLUTIONTASK_H

#include "image.h"
#include "backgroundtask.h"

class ConvolutionModel;
class ConvolutionMask;

/**
 * Convolution
 */
class ConvolutionTask : public BackgroundTask
{
public:

    /**
     * Default constructor
     * @param srcImg source image
     * @param model model
     */
    ConvolutionTask(ConvolutionModel &model, ConvolutionMask& mask, QObject *parent=0);

protected:

    /**
     * Background task method
     */
    virtual void doRun();

    /**
     * Background task cancel method
     */
    virtual void doCancel();

private:

    /**
     * Convolution
     * @param srcImg source image
     * @param dstImg convolved image
     * @param mask convolution mask
     * @return true if convolution is successful
     */
    bool convolve(GrayscaleImage& srcImg, GrayscaleImage& dstImg, ConvolutionMask& mask);

    /**
     * Convolution mask
     */
    ConvolutionMask &_mask;

    /**
     * model
     */
    ConvolutionModel &_model;
};

#endif
